1) A rectangular metallic bar of dimensions 4 cm x 6 cm x 8cm is melted and recast into a solid with uniform cross-section. If the cross-section area of the solid is 12 cm^2 , find its length.
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收錄日期: 2021-04-13 12:57:59
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https://hk.answers.yahoo.com/question/index?qid=20070817000051KK03797